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My UST was internally lined for the 1998 upgrade requirements. Does that count as secondary containment?

April 26, 2017containment internally lined requirements Secondary upgrade UST

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My UST was internally lined for the 1998 upgrade requirements. Does that count as secondary containment?

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No, secondary containment includes interstitial monitoring, which means there has to be a space between the two walls that can be monitored. Spray linings, as well as steel tanks coated with fiberglass do not meet the States definition of secondary containment.